EP3497277A1 - Inner unit of a laundry treatment machine and laundry treatment machine having such an inner unit - Google Patents

Inner unit of a laundry treatment machine and laundry treatment machine having such an inner unit

Info

Publication number
EP3497277A1
EP3497277A1 EP17754073.9A EP17754073A EP3497277A1 EP 3497277 A1 EP3497277 A1 EP 3497277A1 EP 17754073 A EP17754073 A EP 17754073A EP 3497277 A1 EP3497277 A1 EP 3497277A1
Authority
EP
European Patent Office
Prior art keywords
electronics
engine electronics
unit according
motor
electric motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17754073.9A
Other languages
German (de)
French (fr)
Other versions
EP3497277B1 (en
Inventor
Martin Weinmann
Hartmut Wauer
Bernd Last
Sebastian Tinius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP3497277A1 publication Critical patent/EP3497277A1/en
Application granted granted Critical
Publication of EP3497277B1 publication Critical patent/EP3497277B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups

Definitions

  • the invention relates to an internal unit of a laundry treatment machine, in particular a vibratory suspended indoor unit of a laundry treatment machine, according to the preamble of claim 1 and a laundry treatment machine with such an internal unit.
  • the internal unit 2 of a washing or centrifuging machine usually comprises a tub 3 with a laundry drum 4 rotatably mounted therein and a drive unit in the form of an electric motor 8 which drives the laundry drum 4 frequently via a reduction gear or a transmission.
  • the internal unit is suspended in a machine or machine housing 1 and represents a damped oscillatory overall system, which is subject to resonance phenomena in certain areas of the - compared to engine speed - reduced speed of the laundry drum, which can be excited by imbalance in the laundry load. As a result of momentary imbalance in the load can cause strong oscillations of the internal unit. It is important to recognize arising oscillatory movements and to avoid them by specifying appropriate setpoint speeds.
  • the present invention is based on the problem of providing an improved internal unit of a laundry treatment machine.
  • an internal unit of a laundry treatment machine with a tub, a rotatably mounted laundry drum in the tub, an electric motor for driving the laundry drum and an engine electronics for controlling the electric motor, the engine electronics is mounted on the tub.
  • the indoor unit is preferably an oscillating suspended indoor unit.
  • the assembly of the engine electronics on the tub is preferably carried out by means of a provided on the tub molding for receiving the engine electronics.
  • the engine electronics is spaced from the electric motor for driving the laundry drum.
  • the hot during operation electric motor thus presents no problem for the engine electronics, so less effort for the cooling and / or thermal insulation of the engine electronics is required and the engine electronics can be made simpler and cheaper as a result.
  • mounting the engine electronics directly on the tub in particular by means of the tub provided on the molding, can be dispensed with additional protection of the engine electronics and additional fastening means for the engine electronics, for example in the form of a housing, a paint or the like or such measures at least easier.
  • the configuration according to the invention is more flexible with regard to new printed circuit boards (components). Also, the separation of engine electronics and electric motor advantages in terms of logistics and warranty. Another advantage is the reduced complexity of a wiring harness and the vibration loops.
  • the shape for shielding the engine electronics is designed from moisture, in particular for shielding from water droplets or splashing water. Due to its shape, the tub shields the motor electronics with regard to drops of water and splashes of water.
  • the molding and / or the engine electronics have at least one opening for exchanging a fluid in the molding, in particular water vapor or water, with an environment. Through this at least one opening can occur, for example, occur between the engine electronics and the tub condensation occurring.
  • the engine electronics on a circuit board on which the components of the engine electronics are arranged at least partially hanging.
  • larger components such as chokes and heatsink are mounted hanging down on the circuit board of the engine electronics, so that condensate drains off due to the gravitational force and can not flow to the circuit board.
  • the motor electronics for electrical power supply is connected to a DC power supply.
  • the engine electronics are preferably connected via a power supply line to a main controller of the laundry treatment machine.
  • the engine electronics can be supplied directly with DC voltage or have a rectifier to which an AC voltage is supplied.
  • the engine electronics on at least one vibration sensor or a rotation rate sensor are mounted on the engine electronics of the indoor unit.
  • vibrations of the internal unit for example, caused by an imbalance of the loading of the laundry drum can be detected, preferably to control the electric motor accordingly.
  • the part of the engine electronics is, which is preferably rigidly connected to the tub, a speed profile for the drive of the laundry drum can be optimized.
  • the at least one vibration sensor is based on a measurement principle using a capacitive effect, an inductive effect or a piezoelectric effect.
  • the at least one vibration sensor is designed and / or arranged such that a rotational oscillatory movement of the inner assembly or of the tub of the inner assembly about a first axis of rotation can be detected with it.
  • This first axis of rotation is preferably aligned obliquely, in particular perpendicularly or substantially perpendicular to a drive rotational axis defined by the bearing shaft of the electric motor and / or the laundry drum.
  • at least two vibration sensors are provided. Then, an imaginary straight line connecting the at least two vibration sensors is preferably oriented parallel to the drive rotational axis.
  • At least one distance sensor is provided for measuring a distance between the inner unit and a machine housing or a part fixedly connected to the machine housing.
  • this distance sensor can preferably a load of the laundry drum, ie a weight of the laundry in the laundry drum, in particular a dry load at the beginning of a washing program of the laundry treatment machine or an amount of water supplied are determined.
  • a load of the laundry drum ie a weight of the laundry in the laundry drum, in particular a dry load at the beginning of a washing program of the laundry treatment machine or an amount of water supplied are determined.
  • the tub and the washing drum sink in the machine housing against the spring force of the suspension of the internal unit, so that this Absinkweg can be detected as a measure of the load.
  • the distance sensor has a transmitter arranged on the motor electronics and a receiver arranged on the motor electronics, the transmitter and receiver preferably being based on an optical measuring principle, and the transmitter and the receiver of the distance sensor having a reflection surface on the sensor Machine housing or a firmly connected to the machine housing part cooperate.
  • the distance sensor comprises a transmitter or receiver arranged on the motor electronics and a receiver or transmitter arranged on the machine housing or a part (for example a main controller of the laundry treating machine) permanently connected to the machine housing.
  • the connection between transmitter and receiver is preferably carried out by means of a sensor line for high-resolution and fast data transmission.
  • At least one filter device for damping low-frequency and / or high-frequency electromagnetic interference is provided.
  • the at least one filter device preferably has a harmonic reactor for damping the mains harmonics (eg up to about 2 kHz), which is preferably arranged on a main controller of the laundry treating machine, and / or a filter choke for filtering the high-frequency spurious emission (eg over 100 kHz) of the converter stage the engine electronics.
  • the filter choke for filtering the high-frequency interference is preferably mounted directly on the engine electronics.
  • the electric motor on a stator, which is electrically connected to the engine electronics, preferably with a voltage intermediate circuit of the engine electronics. Due to the capacitive connection of the
  • an electrical insulator is arranged between a motor pulley of the electric motor and a rotor axis of the electric motor. That is, the motor pulley of the electric motor is electrically isolated from the rotor axis of the electric motor.
  • the engine electronics on a heat sink preferably a heat sink with cooling fins.
  • the cooling fins are preferably designed as domes, particularly preferably as a plurality of domes.
  • the invention also relates to a laundry treatment machine with a machine housing, a main controller and an internal unit of the invention described above.
  • the laundry treatment machine is, for example, a washing machine or a tumble dryer.
  • FIG. 1 shows the structure of a washing machine with a known from the prior art indoor unit.
  • Fig. 2 shows the structure of a washing machine with a suspended suspended
  • Fig. 3 greatly simplifies the components of the engine electronics of the internal unit and the interaction with other components according to an embodiment of the invention.
  • Fig. 2 shows schematically a washing machine in an end view against the back of a machine housing 1 of the washing machine, wherein the back of a loading opening, not shown, opposite.
  • an inner unit 2 is suspended vibratory.
  • the inner unit 2 comprises a tub 3, a washing or laundry drum 4, a Trommelriemenrad 5, a transmission belt 6, a Motorriemenrad 7 and an electric motor 8.
  • the inner unit comprises all components that with the rotating washing or laundry drum 4 form a common vibration system.
  • the oscillating system is vibration-isolated by a suspension with respect to a machine housing 1 and / or vibration-damped.
  • the drum-shaped tub 3 is aligned parallel or with slight inclination to the bottom of the machine housing 1 in its longitudinal extent.
  • the tub 3 is thus arranged lying in the machine housing 1.
  • a first side wall of the tub 3 is facing the loading opening (not shown). 2
  • a rectangular coordinate system 9 with three axes X, Y, Z is shown.
  • the axis marked X is aligned substantially parallel to the longitudinal extent of the tub 3.
  • the washing or laundry drum 4 is arranged concentrically within the tub 3.
  • the laundry drum 4 is rotatably mounted, in particular in the rear wall of the tub 3. In a second side wall of the tub 3 facing away from the loading opening.
  • the washing or laundry drum 4 is rotatably connected to the Trommelriemenrad 5.
  • the Trommelriemenrad 5 is arranged concentrically to the washing or laundry drum 4.
  • the drum pulley 5 is normally smaller in diameter than the washing or laundry drum 4.
  • the Trommelriemenrad 5 is disposed on the side of the second side wall outside of the tub 3. Via a transmission belt 6, the drum pulley 5 is coupled to a motor pulley 7. The motor pulley 7 is aligned parallel to the drum pulley 5. In the direction of the bottom of the machine housing 1, the motor pulley 7 is arranged but offset. The motor pulley 7 is rotatably connected to a rotor shaft of the electric motor 8, so that the motor pulley 7 can be driven by the electric motor 8. About a belt transmission consisting of the Motorriemenrad 7, the transmission belt 6 and the Trommelriemenrad 5 is the Washing or laundry drum 4 within the tub 3 can be set in rotary motion.
  • the bearing of the laundry drum 4 may be grounded (not shown).
  • the motor pulley 7 is provided with basic insulation, e.g. in the form of a two-component pulley on the axis of the electric motor 8 with internal electrical insulator 7a.
  • the washing or laundry drum 4 is movable by a direct drive. The direct drive is located at the location of the drum belt pulley 5.
  • the suspension of the inner unit 2 is realized in the ceiling region of the machine housing 1 by springs 11.
  • the springs 11 each engage with their one end in the cover-side side areas of the machine housing 1. With their other end, the springs 1 1 are attached to different positions on the inner unit 2, for example, at the top of the tub 3. Further stabilize friction damper 12 in the bottom portion of the machine housing 1, the inner unit 2.
  • the friction damper 12 are each with one end in the side areas supported by the machine housing 1. The respective other end is attached to the bottom of the machine housing 1 side facing the inner unit 2, here at the bottom of the tub 3, at different positions.
  • the electric motor 8 is driven by an engine electronics 10.
  • This engine electronics 10 is not attached to the electric motor 8, as in the conventional embodiment shown in Fig. 1, but mounted on the tub 3.
  • a special molding 3a is provided, which is formed on the tub 3 or is firmly connected thereto.
  • the engine electronics 10 is accommodated in this configuration 3a, so that the engine electronics 10 is rigidly connected to the tub 3.
  • a main controller 20 is also provided in the machine housing 1, which supplies the engine electronics 10 with DC voltage or AC voltage via a power supply line 21 and is connected to the engine electronics 10 via a communication line 22 for data exchange.
  • the engine electronics 10 are connected to the electric motor 8 via a connection 13 for driving the motor phases of the electric motor 8.
  • a connection 14 between the engine electronics 10 and a stator 8 a of the electric motor 8 is provided.
  • the components of the engine electronics 10 are shown in more detail in Fig. 3, wherein the structure and arrangement are shown very schematically.
  • the engine electronics 10 has, for example, a flat or a 3-D printed circuit board 24 which is rigidly connected to the tub 3.
  • the circuit board 24 is received in particular in the shape 3a on the tub 3.
  • one or more openings 23 are formed so that a fluid (e.g., condensed water, water vapor) in the space between the circuit board 24 and the tub 3 can leak into the environment. Additionally or alternatively, one or more openings may be formed in the molding.
  • a fluid e.g., condensed water, water vapor
  • the engine electronics 10 includes a plurality of electronic components and a heat sink 28.
  • the larger components are - mounted in the installed state of the engine electronics 10 - hanging on the circuit board 24.
  • the condensed water which optionally condenses on the electronic components, does not flow onto the circuit board 24, but can drain by gravity into the environment.
  • the heat sink 28 serves, in particular, for cooling power components such as, for example, an inverter output stage 31 of the engine electronics 10.
  • the heat sink 28 is preferably provided with a plurality of cooling fins 29 in the form of domes.
  • the heat sink 28 experiences an additional forced ventilation due to unbalanced vibration of the internal unit 2.
  • a heat sink design with low flow resistance in the X and Y direction is therefore advantageous in order to achieve the best possible cooling in all possible unbalance-induced deflection directions of the engine electronics 10.
  • a cooling body 28 designed in this way can be a cast cooling body with a large number of cooling fins 29 designed as domes.
  • the heat sink 28 projects beyond the end wall of the tub 3 to ensure better air circulation in the Z direction.
  • the engine electronics 10 has a control device 35 (eg microcontroller), which is connected via a communication line 22 to the main controller 20 of the laundry treatment machine.
  • a rectifier 32 which is supplied from the main controller 20 via a power supply line 21 with AC voltage, a voltage intermediate circuit 30 and a three-phase inverter output stage 31 for driving the three motor phases of the electric motor 8 are arranged.
  • the engine electronics 10 can be switched on and off via the main controller 20 with a switch.
  • the main controller 20 is connected to the engine electronics 10 via the power supply line 21.
  • the power supply line 21 supplies the engine electronics 10 with mains voltage from the main controller 20.
  • the mains voltage is rectified in the rectifier 32 of the engine electronics 10.
  • the rectified AC voltage on the engine electronics 10 supplies the voltage intermediate circuit 30. From the voltage intermediate circuit 30, in addition to the electric motor 8, other actuators can be supplied, such as circulation pumps or drain pumps.
  • the supply of the engine electronics 10 with a DC voltage is possible. If the power supply of the engine electronics 10 by means of the power supply line 21 via a DC voltage, the same voltage intermediate circuit 30 in addition to the inverter output stage 31 for controlling the electric motor 8 for other inverter output stages on the main controller 20 for controlling other actuators used, such as a circulation pump or a drain pump.
  • the inverter output stage 31 is connected to the electric motor via the connection 13. In addition, via the connection 14, the electrical potential of the
  • connection 14 on the engine electronics 10 is capacitively connected to a reference potential of the engine electronics 10.
  • the connection 14 is connected to one pole of the voltage intermediate circuit 30 of the converter output stage 31 for controlling the electric motor 8, so that the stator plate 8a of the motor 8 acts as a shield for the motor phases clocked via the connection 13.
  • the engine electronics 10 typically generates spurious low frequency harmonic currents on the power supply line 21 that must be attenuated. Furthermore, high-frequency electromagnetic interference caused by switching operations in the power stage of the engine electronics 10, which serve to control the electric motor 8.
  • the components for filtering the electromagnetic interference are arranged in the embodiment of Fig. 3 as follows.
  • a (heavy) harmonic reactor 33 for reducing the harmonics to the mains frequency up to about 2 kHz is arranged on the main controller 20.
  • the filter components for damping high-frequency interference are mounted close to the interference source, preferably directly on the engine electronics 10.
  • Such a filter device is, for example, a current-compensated double choke 25 for filtering the high-frequency electromagnetic interference emission (> 100 kHz) of the converter output stage 31 of the engine electronics 10.
  • the engine electronics 10 have one or more vibration sensors 26 for detecting vibrations of the inner assembly 2, in particular its lye container 3, and the control device 35 for detecting the measured values of the at least one vibration sensor 26 and for controlling the electric motor 8.
  • the vibration sensors 26 are, for example, designed such that they rotate or move linearly about the Y-axis and / or the Z-axis (coordinate system 9). can measure. Alternatively or additionally, the angular accelerations or linear accelerations associated with these rotations or linear movements can be measured with the vibration sensors 26. In particular, a pitching movement of the inner assembly 2 (about the Y-axis) and / or a yawing movement of the inner assembly 2 (about the Z-axis) may be measurable. In addition, the vibration sensors 26 may be formed such that vibrations about the X-axis or in the X-axis are measurable.
  • At least two vibration sensors 26 are mounted on the engine electronics 10 and / or directly on the tub 3.
  • the vibration sensors 26 are located on a (fictitious) parallel to the drive axis of rotation (X). In this case, the at least two vibration sensors 26 have the greatest possible distance from one another.
  • the position of the center of mass of the laundry within the washing or laundry drum 4 above a contact speed at which the laundry is completely applied to the laundry drum 4, can be determined exactly.
  • the movement of the laundry drum 4 within the washing machine is uniquely determined and predictable.
  • a vibration sensor and a rotation rate sensor can also be used.
  • the two sensors are preferably mounted to each other so that the detection axes of both sensors are congruent.
  • the load or the degree of filling or the weight of the laundry drum 4 charged by the filled laundry can be measured by measuring a sinking distance of the friction damper 12 or by comparing a position of the motor electronics 10 to a machine housing 1 reference point.
  • the measurement can be based on optical, laser-optical, fiber optic, acoustic, inductive or magnetostrictive measuring principles. Further preferred measuring principles are based on the principle of the differential transformer, the differential reactor or by determining the sinking on the basis of an eddy current sensor.
  • a transmitter 27a and a receiver 27b may be mounted on the engine electronics 10. Transmitter 27a and receiver 27b of the distance sensor cooperate, for example, with a reflection surface 34 at the bottom of the machine housing 1.
  • the control architecture according to the invention with the motor electronics 10 fastened to the tub 3 also offers further options for a filling degree measurement via the sinking distance of the internal unit 2.
  • the distance sensor may also be provided by a transmitter 27a 'on the main controller 20 and a receiver 27b' on the engine electronics 10 may be formed, which can be coupled to each other via a sensor line 27c '.
  • optical, acoustic or electromagnetic carrier signals can be transmitted via the sensor line 27c 'in order to detect the relative position between the main controller 20 and the engine electronics 10.
  • the main controller 20 is fixedly connected to the machine housing 1, the absolute lowering of the tub 3 is measurable during its loading with laundry and so on the spring constant of the springs 1 1, the weight of the load determined.
  • the main controller 20 is mounted near the engine electronics 10 on the machine housing 1 of the laundry treatment machine.
  • the signals between the transmitter 27a 'and the receiver 27b' as undisturbed as possible, with the best possible resolution receivable.
  • the positions of transmitter 27a 'and receiver 27b' may also be reversed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention relates to an inner unit (2) of a laundry treatment machine, which inner unit is suspended in such a way that the inner unit can vibrate, has an outer tub (3), a rotatably mounted inner tub (4) in the outer tub, an electric motor (8) for driving the inner tub (4), and motor electronics (10) for controlling the electric motor (8). According to the invention, the motor electronics (10) are mounted on the outer tub (3), for example by means of a protrusion (3a) provided on the outer tub (3) for holding the motor electronics (10).

Description

Diehl AKO Stiftung & Co. KG, 88239 Wangen  Diehl AKO Foundation & Co. KG, 88239 Wangen
Innenaggregat einer Wäschebehandlungsmaschine und Wäschebehandlungsmaschine mit einem solchen Inner unit of a laundry treatment machine and laundry treating machine with such
Die Erfindung betrifft ein Innenaggregat einer Wäschebehandlungsmaschine, insbesondere ein schwingfähig aufgehängtes Innenaggregat einer Wäschebehandlungsmaschine, gemäß dem Oberbegriff des Patentanspruchs 1 sowie eine Wäschebehandlungsmaschine mit einem solchen Innenaggregat. Wie in Fig. 1 veranschaulicht, umfasst das Innenaggregat 2 einer Wasch- oder Schleudermaschine gewöhnlich einen Laugenbehälter 3 mit darin drehbar gelagerter Wäschetrommel 4 und einer Antriebseinheit in Form eines Elektromotors 8, der die Wäschetrommel 4 häufig über ein Reduktionsgetriebe oder eine Transmission antreibt. Das Innenaggregat ist schwingfähig in einem Maschinen- oder Automatengehäuse 1 aufge- hängt und stellt ein gedämpft schwingungsfähiges Gesamtsystem dar, das in bestimmen Bereichen der - gegenüber Motordrehzahl untersetzten - Drehzahl der Wäschetrommel Resonanzerscheinungen unterliegt, welche durch Unwucht in der Wäschebeladung angeregt werden können. Infolge momentaner Unwucht in der Beladung können starke Schwingbewegungen des Innenaggregats entstehen. Entstehende Schwingbewegungen gilt es zu erkennen und durch Vorgabe entsprechender Solldrehzahlen zu umgehen. The invention relates to an internal unit of a laundry treatment machine, in particular a vibratory suspended indoor unit of a laundry treatment machine, according to the preamble of claim 1 and a laundry treatment machine with such an internal unit. As illustrated in FIG. 1, the internal unit 2 of a washing or centrifuging machine usually comprises a tub 3 with a laundry drum 4 rotatably mounted therein and a drive unit in the form of an electric motor 8 which drives the laundry drum 4 frequently via a reduction gear or a transmission. The internal unit is suspended in a machine or machine housing 1 and represents a damped oscillatory overall system, which is subject to resonance phenomena in certain areas of the - compared to engine speed - reduced speed of the laundry drum, which can be excited by imbalance in the laundry load. As a result of momentary imbalance in the load can cause strong oscillations of the internal unit. It is important to recognize arising oscillatory movements and to avoid them by specifying appropriate setpoint speeds.
Ein Lösungsansatz, bei dem die Motorelektronik 10 direkt am Elektromotor 8 befestigt ist, ist in der DE 10 2005 037 144 B4 beschrieben. Diese Lösung hat sich aber am Markt nicht durchgesetzt, da aus Gründen der Logistik und Gewährleistung die Motorelektronik vom Motor getrennt sein sollte. Technische Nachteile dieser herkömmlichen Lösung sind die räumliche Nähe der Motorelektronik zum heißen Elektromotor sowie die Notwendigkeit eines Gehäuses zum Schutz der Motorelektronik vor Tropfwasser. An approach in which the engine electronics 10 is attached directly to the electric motor 8 is described in DE 10 2005 037 144 B4. However, this solution has not prevailed on the market, as for reasons of logistics and warranty, the engine electronics should be separated from the engine. Technical disadvantages of this conventional solution are the proximity of the engine electronics to the hot electric motor and the need for a housing to protect the engine electronics from dripping water.
In Erkenntnis dieser Gegebenheiten liegt vorliegender Erfindung die Problemstellung zugrunde, ein verbessertes Innenaggregat einer Wäschebehandlungsmaschine bereit- In recognition of these circumstances, the present invention is based on the problem of providing an improved internal unit of a laundry treatment machine.
BESTÄTIGUNGSKOPIE zustellen, mit dem die genannten Nachteile des Standes der Technik behoben werden können. CONFIRMATION COPY with which the stated disadvantages of the prior art can be remedied.
Diese Aufgabe wird erfindungsgemäß gelöst durch ein Innenaggregat einer Wäschebe- handlungsmaschine mit einem Laugenbehälter, einer drehbar gelagerten Wäschetrommel im Laugenbehälter, einem Elektromotor zum Antreiben der Wäschetrommel und einer Motorelektronik zur Ansteuerung des Elektromotors, wobei die Motorelektronik an dem Laugenbehälter montiert ist. Bei dem Innenaggregat handelt es sich vorzugsweise um ein schwingfähig aufgehängtes Innenaggregat. Die Montage der Motorelektronik am Laugenbehälter erfolgt vorzugsweise mittels einer am Laugenbehälter vorgesehenen Ausformung zur Aufnahme der Motorelektronik. This object is achieved by an internal unit of a laundry treatment machine with a tub, a rotatably mounted laundry drum in the tub, an electric motor for driving the laundry drum and an engine electronics for controlling the electric motor, the engine electronics is mounted on the tub. The indoor unit is preferably an oscillating suspended indoor unit. The assembly of the engine electronics on the tub is preferably carried out by means of a provided on the tub molding for receiving the engine electronics.
Durch die erfindungsgemäß vorgesehene Montage der Motorelektronik direkt am Laugenbehälter ist die Motorelektronik vom Elektromotor zum Antreiben der Wäschetrommel beabstandet. Der im Betrieb heiß werdende Elektromotor stellt somit kein Problem für die Motorelektronik dar, sodass weniger Aufwand für die Kühlung und/oder die thermische Isolierung der Motorelektronik erforderlich ist und die Motorelektronik im Ergebnis einfacher und kostengünstiger ausgestaltet werden kann. Durch die erfindungsgemäß vorgesehene Montage der Motorelektronik direkt am Laugenbehälter, insbesondere mittels der am Laugenbehälter vorgesehenen Ausformung, kann auf einen zusätzlichen Schutz der Motorelektronik und auf zusätzliche Befestigungsmittel für die Motorelektronik zum Beispiel in Form eines Gehäuses, einer Lackierung oder dergleichen verzichtet werden oder können solche Maßnahmen zumindest einfacher ausfallen. By inventively provided mounting the engine electronics directly on the tub, the engine electronics is spaced from the electric motor for driving the laundry drum. The hot during operation electric motor thus presents no problem for the engine electronics, so less effort for the cooling and / or thermal insulation of the engine electronics is required and the engine electronics can be made simpler and cheaper as a result. By inventively provided mounting the engine electronics directly on the tub, in particular by means of the tub provided on the molding, can be dispensed with additional protection of the engine electronics and additional fastening means for the engine electronics, for example in the form of a housing, a paint or the like or such measures at least easier.
Außerdem ist die erfindungsgemäße Konfiguration im Hinblick auf neue Leiter- platten(bestückungen) flexibler. Auch hat die Trennung von Motorelektronik und Elektromotor Vorteile im Hinblick auf die Logistik und die Gewährleistung. Ein weiterer Vorteil besteht hinsichtlich einer reduzierten Komplexität eines Kabelbaums und der Schwingungsschlaufen. In addition, the configuration according to the invention is more flexible with regard to new printed circuit boards (components). Also, the separation of engine electronics and electric motor advantages in terms of logistics and warranty. Another advantage is the reduced complexity of a wiring harness and the vibration loops.
In einer vorteilhaften Ausgestaltung ist die Ausformung zur Abschirmung der Motorelektronik vor Feuchtigkeit ausgestaltet, insbesondere zur Abschirmung vor Wassertropfen oder Spritzwasser. Der Laugenbehälter schirmt durch seine Ausformung die Motorelektronik bezüglich Wassertropfen und Wasserspritzer ab. In einer anderen vorteilhaften Ausgestaltung ist die Ausformung zum Schutz der Motorelektronik vor mechanischen Einwirkungen, insbesondere vor einem Anschlagen an ein Maschinengehäuse der Wä- schebehandlungsmaschine oder ein damit verbundenes Teil, ausgestaltet. Der Laugenbehälter schützt durch seine Ausformung die Motorelektronik hinreichend vor einem Anschlag am Maschinengehäuse oder damit verbunden Teile. In an advantageous embodiment, the shape for shielding the engine electronics is designed from moisture, in particular for shielding from water droplets or splashing water. Due to its shape, the tub shields the motor electronics with regard to drops of water and splashes of water. In another advantageous embodiment, the shaping for protecting the engine electronics from mechanical effects, in particular before a hitting a machine housing of the laundry treatment machine or a part connected thereto, designed. Due to its shape, the tub protects the motor electronics sufficiently against a stop on the machine housing or parts connected to it.
In einer vorteilhaften Ausgestaltung weisen die Ausformung und/oder die Motorelektronik wenigstens eine Öffnung zum Austausch eines in der Ausformung befindlichen Fluids, insbesondere Wasserdampf oder Wasser, mit einer Umgebung auf. Durch diese wenigstens eine Öffnung kann zum Beispiel zwischen der Motorelektronik und dem Laugenbehälter auftretendes Kondenswasser austreten. In an advantageous embodiment, the molding and / or the engine electronics have at least one opening for exchanging a fluid in the molding, in particular water vapor or water, with an environment. Through this at least one opening can occur, for example, occur between the engine electronics and the tub condensation occurring.
In einer vorteilhaften Ausgestaltung weist die Motorelektronik eine Leiterplatte auf, auf der die Komponenten der Motorelektronik zumindest teilweise hängend angeordnet sind. Insbesondere größere Komponenten wie Drosseln und Kühlkörper sind auf der Leiterplatte der Motorelektronik nach unten hängend montiert, damit Kondenswasser aufgrund der Gravitationskraft abfließt und nicht auf die Leiterplatte fließen kann. In an advantageous embodiment, the engine electronics on a circuit board on which the components of the engine electronics are arranged at least partially hanging. In particular, larger components such as chokes and heatsink are mounted hanging down on the circuit board of the engine electronics, so that condensate drains off due to the gravitational force and can not flow to the circuit board.
Vorzugsweise ist die Motorelektronik zur elektrischen Energieversorgung mit einer Gleichspannungsversorgung verbunden. Zu diesem Zweck ist die Motorelektronik bevorzugt über eine Energieversorgungsleitung mit einer Hauptsteuerung der Wäschebehandlungsmaschine verbunden. Dabei kann die Motorelektronik direkt mit Gleichspannung versorgt werden oder einen Gleichrichter aufweisen, dem eine Wechselspannung zugeführt wird. Preferably, the motor electronics for electrical power supply is connected to a DC power supply. For this purpose, the engine electronics are preferably connected via a power supply line to a main controller of the laundry treatment machine. In this case, the engine electronics can be supplied directly with DC voltage or have a rectifier to which an AC voltage is supplied.
In einer vorteilhaften Ausgestaltung der Erfindung weist die Motorelektronik wenigstens einen Schwingungssensor oder einen Drehratensensor auf. An der Motorelektronik des Innenaggregats sind ein oder mehrere Schwingungssensoren montiert. Mit Hilfe des wenigstens einen Schwingungssensors können vorzugsweise Schwingungen des Innenaggregats, zum Beispiel verursacht durch eine Unwucht der Beladung der Wäschetrommel erfasst werden, um den Elektromotor entsprechend anzusteuern. Insbesondere kann mit Hilfe des wenigstens einen Schwingungssensors, der Teil der Motorelektronik ist, die bevorzugt starr mit dem Laugenbehälter verbunden ist, ein Drehzahlprofil für den Antrieb der Wäschetrommel optimiert werden. In an advantageous embodiment of the invention, the engine electronics on at least one vibration sensor or a rotation rate sensor. One or more vibration sensors are mounted on the engine electronics of the indoor unit. With the help of the at least one vibration sensor vibrations of the internal unit, for example, caused by an imbalance of the loading of the laundry drum can be detected, preferably to control the electric motor accordingly. In particular, with the help of the at least one vibration sensor, the part of the engine electronics is, which is preferably rigidly connected to the tub, a speed profile for the drive of the laundry drum can be optimized.
Vorzugsweise ist der wenigstens eine Schwingungssensor auf einem einen kapazitiven Effekt, einen induktiven Effekt oder einen piezoelektrischen Effekt nutzenden Messprinzip beruhend ausgebildet. Preferably, the at least one vibration sensor is based on a measurement principle using a capacitive effect, an inductive effect or a piezoelectric effect.
Vorzugsweise ist der wenigstens eine Schwingungssensor derart ausgebildet und/oder angeordnet, dass mit ihm eine rotatorische Schwingbewegung des Innenaggregats bzw. des Laugenbehälters des Innenaggregats um eine erste Drehachse detektierbar ist. Diese erste Drehachse ist bevorzugt schräg, insbesondere senkrecht oder im Wesentlichen senkrecht zu einer durch die Lagerwelle des Elektromotors und/oder der Wäschetrommel definierten Antriebsdrehachse ausgerichtet. Vorzugsweise sind wenigstens zwei Schwingungssensoren vorgesehen. Dann ist eine die wenigstens zwei Schwingungssensoren verbindende, gedachte Gerade bevorzugt parallel zur Antriebsdrehachse orientiert. Preferably, the at least one vibration sensor is designed and / or arranged such that a rotational oscillatory movement of the inner assembly or of the tub of the inner assembly about a first axis of rotation can be detected with it. This first axis of rotation is preferably aligned obliquely, in particular perpendicularly or substantially perpendicular to a drive rotational axis defined by the bearing shaft of the electric motor and / or the laundry drum. Preferably, at least two vibration sensors are provided. Then, an imaginary straight line connecting the at least two vibration sensors is preferably oriented parallel to the drive rotational axis.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist wenigstens ein Abstands- sensor zur Messung eines Abstands zwischen dem Innenaggregat und einem Maschinengehäuse oder einem fest mit dem Maschinengehäuse verbundenen Teil vorgesehen. Mit Hilfe dieses Abstandssensors kann vorzugsweise eine Beladung der Wäschetrommel, d.h. ein Gewicht der Wäsche in der Wäschetrommel, insbesondere eine Trockenbeladung zu Beginn eines Waschprogramms der Wäschebehandlungsmaschine oder eine zugeführte Wassermenge bestimmt werden. Im Fall eines schwingfähig aufgehängten Innenaggregats sinken der Laugenbehälter und die Wäschetrommel im Maschinengehäuse gegen die Federkraft der Aufhängung des Innenaggregats ab, sodass dieser Absinkweg als Maß für die Beladung erfasst werden kann. In einer Ausführungsvariante weist der Abstandssensor einen auf der Motorelektronik angeordneten Sender und einen auf der Motorelektronik angeordneten Empfänger auf, wobei Sender und Empfänger bevorzugt auf einem optischen Messprinzip beruhen und der Sender und der Empfänger des Abstandssensors mit einer Reflexionsfläche an dem Maschinengehäuse oder einem fest mit dem Maschinengehäuse verbunden Teil zusammenwirken. In a further advantageous embodiment of the invention, at least one distance sensor is provided for measuring a distance between the inner unit and a machine housing or a part fixedly connected to the machine housing. With the aid of this distance sensor can preferably a load of the laundry drum, ie a weight of the laundry in the laundry drum, in particular a dry load at the beginning of a washing program of the laundry treatment machine or an amount of water supplied are determined. In the case of an oscillating suspended indoor unit, the tub and the washing drum sink in the machine housing against the spring force of the suspension of the internal unit, so that this Absinkweg can be detected as a measure of the load. In one embodiment variant, the distance sensor has a transmitter arranged on the motor electronics and a receiver arranged on the motor electronics, the transmitter and receiver preferably being based on an optical measuring principle, and the transmitter and the receiver of the distance sensor having a reflection surface on the sensor Machine housing or a firmly connected to the machine housing part cooperate.
In einer alternativen oder zusätzlichen Ausführungsvariante weist der Abstandssensor einen auf der Motorelektronik angeordneten Sender oder Empfänger und einen an dem Maschinengehäuse oder einem fest mit dem Maschinengehäuse verbundenen Teil (z.B. einer Hauptsteuerung der Wäschebehandlungsmaschine) angeordneten Empfänger o- der Sender auf. Die Verbindung zwischen Sender und Empfänger erfolgt vorzugsweise mittels einer Sensorleitung zur hochauflösenden und schnellen Datenübertragung. In an alternative or additional embodiment variant, the distance sensor comprises a transmitter or receiver arranged on the motor electronics and a receiver or transmitter arranged on the machine housing or a part (for example a main controller of the laundry treating machine) permanently connected to the machine housing. The connection between transmitter and receiver is preferably carried out by means of a sensor line for high-resolution and fast data transmission.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist wenigstens eine Filtereinrichtung zur Dämpfung niederfrequenter und/oder hochfrequenter elektromagnetischer Störungen vorgesehen. Die wenigstens eine Filtereinrichtung weist bevorzugt eine Oberwellendrossel zur Dämpfung der Netzoberwellen (z.B. bis etwa 2 kHz), die bevor- zugt auf einer Hauptsteuerung der Wäschebehandlungsmaschine angeordnet ist, und/oder eine Filterdrossel zur Filterung der hochfrequenten Störaussendung (z.B. über 100 kHz) der Umrichterstufe der Motorelektronik auf. Die Filterdrossel zur Filterung der hochfrequenten Störungen ist bevorzugt direkt auf der Motorelektronik montiert. In einer vorteilhaften Ausgestaltung der Erfindung weist der Elektromotor ein Statorblech auf, das elektrisch mit der Motorelektronik, bevorzugt mit einem Spannungszwischenkreis der Motorelektronik verbunden ist. Durch die kapazitive Verbindung des In a further advantageous embodiment of the invention, at least one filter device for damping low-frequency and / or high-frequency electromagnetic interference is provided. The at least one filter device preferably has a harmonic reactor for damping the mains harmonics (eg up to about 2 kHz), which is preferably arranged on a main controller of the laundry treating machine, and / or a filter choke for filtering the high-frequency spurious emission (eg over 100 kHz) of the converter stage the engine electronics. The filter choke for filtering the high-frequency interference is preferably mounted directly on the engine electronics. In an advantageous embodiment of the invention, the electric motor on a stator, which is electrically connected to the engine electronics, preferably with a voltage intermediate circuit of the engine electronics. Due to the capacitive connection of the
Statorblechs des Elektromotors mit einem Bezugspotenzial der Motorelektronik, bevorzugt mit einem Pol des Spannungszwischenkreises der Motorelektronik, kann die Ein- kopplung elektromagnetischer Störungen auf das Maschinengehäuse, einen darin liegenden Kabelbaum oder andere elektrische Komponenten reduziert werden. D.h. das Statorblech des Elektromotors kann als Abschirmung für die von der Motorelektronik getakteten Motorphasen des Elektromotors dienen. Durch die beiden vorgenannten Maßnahmen lässt sich die elektromagnetische Verträglichkeit des Innenaggregats insbesondere bezüglich Störaussendung des Elektromotors und der Motorelektronik verbessern. In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist ein elektrischer Isolator zwischen einem Motorriemenrad des Elektromotors und einer Rotorachse des Elektromotors angeordnet. D.h. das Motorriemenrad des Elektromotors ist gegen die Rotorachse des Elektromotors elektrisch isoliert. Statorblechs the electric motor with a reference potential of the engine electronics, preferably with a pole of the voltage intermediate circuit of the engine electronics, the coupling of electromagnetic interference on the machine housing, a cable harness lying therein or other electrical components can be reduced. That is, the stator of the electric motor can serve as a shield for the clocked by the engine electronics motor phases of the electric motor. By means of the two aforementioned measures, the electromagnetic compatibility of the internal unit can be improved, in particular with regard to emission of the electric motor and the engine electronics. In a further advantageous embodiment of the invention, an electrical insulator is arranged between a motor pulley of the electric motor and a rotor axis of the electric motor. That is, the motor pulley of the electric motor is electrically isolated from the rotor axis of the electric motor.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung weist die Motorelektronik einen Kühlkörper auf, vorzugsweise einen Kühlkörper mit Kühlfinnen auf. Die Kühlfinnen sind vorzugsweise als Dome, besonders bevorzugt als eine Vielzahl von Domen ausgeführt. In a further advantageous embodiment of the invention, the engine electronics on a heat sink, preferably a heat sink with cooling fins. The cooling fins are preferably designed as domes, particularly preferably as a plurality of domes.
Gegenstand der Erfindung ist auch eine Wäschebehandlungsmaschine mit einem Maschinengehäuse, einer Hauptsteuerung und einem oben beschriebenen Innenaggregat der Erfindung. Bei der Wäschebehandlungsmaschine handelt es sich zum Beispiel um eine Waschmaschine oder einen Wäschetrockner. The invention also relates to a laundry treatment machine with a machine housing, a main controller and an internal unit of the invention described above. The laundry treatment machine is, for example, a washing machine or a tumble dryer.
Obige sowie weitere Merkmale und Vorteile der Erfindung werden aus der nachfolgenden Beschreibung eines bevorzugten, nicht-einschränkenden Ausführungsbeispiels anhand der beiliegenden Zeichnung besser verständlich. Darin zeigen, größtenteils schematisch: The above and other features and advantages of the invention will become more apparent from the following description of a preferred, non-limiting embodiment thereof with reference to the accompanying drawings. In it show, mostly schematically:
Fig. 1 den Aufbau einer Waschmaschine mit einem aus dem Stand der Technik bekannten Innenaggregat; 1 shows the structure of a washing machine with a known from the prior art indoor unit.
Fig. 2 den Aufbau einer Waschmaschine mit einem schwingfähig aufgehängten Fig. 2 shows the structure of a washing machine with a suspended suspended
Innenaggregat gemäß einem Ausführungsbeispiel der Erfindung; und  Inner unit according to an embodiment of the invention; and
Fig. 3 stark vereinfacht die Komponenten der Motorelektronik des Innenaggregats und der Wechselwirkung mit anderen Komponenten gemäß einem Ausführungsbeispiel der Erfindung. Fig. 3 greatly simplifies the components of the engine electronics of the internal unit and the interaction with other components according to an embodiment of the invention.
Fig. 2 zeigt schematisch eine Waschmaschine in einer Stirnansicht gegen die Rückseite eines Maschinengehäuses 1 der Waschmaschine, wobei die Rückseite einer nicht dargestellten Beladungsöffnung gegenüberliegt. In dem Maschinengehäuse 1 ist ein Innenaggregat 2 schwingfähig aufgehängt. Das Innenaggregat 2 umfasst einen Laugenbehälter 3, eine Wasch- oder Wäschetrommel 4, ein Trommelriemenrad 5, einen Transmissionsriemen 6, ein Motorriemenrad 7 und einen Elektromotor 8. Mit anderen Worten umfasst das Innenaggregat alle Bestand- teile, die mit der rotierenden Wasch- oder Wäschetrommel 4 ein gemeinsames Schwingsystem bilden. Das Schwingsystem ist durch eine Aufhängung gegenüber einem Maschinengehäuse 1 schwingungsisoliert und/oder schwingungsgedämpft. Fig. 2 shows schematically a washing machine in an end view against the back of a machine housing 1 of the washing machine, wherein the back of a loading opening, not shown, opposite. In the machine housing 1, an inner unit 2 is suspended vibratory. The inner unit 2 comprises a tub 3, a washing or laundry drum 4, a Trommelriemenrad 5, a transmission belt 6, a Motorriemenrad 7 and an electric motor 8. In other words, the inner unit comprises all components that with the rotating washing or laundry drum 4 form a common vibration system. The oscillating system is vibration-isolated by a suspension with respect to a machine housing 1 and / or vibration-damped.
Der trommeiförmige Laugenbehälter 3 ist in seiner Längserstreckung parallel oder mit leichter Neigung zum Boden des Maschinengehäuses 1 ausgerichtet. Der Laugenbehälter 3 ist also in dem Maschinengehäuse 1 liegend angeordnet. Eine erste Seitenwand des Laugenbehälters 3 ist der Beladungsöffnung (nicht dargestellt) zugewandt. In Fig. 2 ist ein rechtwinkliges Koordinatensystem 9 mit drei Achsen X, Y, Z eingezeichnet. Die mit X gekennzeichnete Achse ist im Wesentlichen parallel zur Längserstreckung des Laugenbehälters 3 ausgerichtet. The drum-shaped tub 3 is aligned parallel or with slight inclination to the bottom of the machine housing 1 in its longitudinal extent. The tub 3 is thus arranged lying in the machine housing 1. A first side wall of the tub 3 is facing the loading opening (not shown). 2, a rectangular coordinate system 9 with three axes X, Y, Z is shown. The axis marked X is aligned substantially parallel to the longitudinal extent of the tub 3.
Die Wasch- oder Wäschetrommel 4 ist konzentrisch innerhalb des Laugenbehälters 3 angeordnet. Die Wäschetrommel 4 ist drehbar gelagert, insbesondere in der Rückwand des Laugenbehälters 3. In einer der Beladungsöffnung abgewandten, zweiten Seiten- wand des Laugenbehälters 3. The washing or laundry drum 4 is arranged concentrically within the tub 3. The laundry drum 4 is rotatably mounted, in particular in the rear wall of the tub 3. In a second side wall of the tub 3 facing away from the loading opening.
Die Wasch- oder Wäschetrommel 4 ist drehfest mit dem Trommelriemenrad 5 verbunden. Das Trommelriemenrad 5 ist konzentrisch zu der Wasch- oder Wäschetrommel 4 angeordnet. Das Trommelriemenrad 5 ist jedoch im Durchmesser normalerweise kleiner ausgebildet als die Wasch- oder Wäschetrommel 4. The washing or laundry drum 4 is rotatably connected to the Trommelriemenrad 5. The Trommelriemenrad 5 is arranged concentrically to the washing or laundry drum 4. However, the drum pulley 5 is normally smaller in diameter than the washing or laundry drum 4.
Das Trommelriemenrad 5 ist auf der Seite der zweiten Seitenwand außerhalb des Laugenbehälters 3 angeordnet. Über einen Transmissionsriemen 6 ist das Trommelriemenrad 5 mit einem Motorriemenrad 7 gekoppelt. Das Motorriemenrad 7 ist parallel zu dem Trommelriemenrad 5 ausgerichtet. In Richtung des Bodens des Maschinengehäuses 1 ist das Motorriemenrad 7 jedoch versetzt angeordnet. Das Motorriemenrad 7 ist mit einer Rotorwelle des Elektromotors 8 drehfest verbunden, sodass durch den Elektromotor 8 das Motorriemenrad 7 antreibbar ist. Über ein Riemengetriebe bestehend aus dem Motorriemenrad 7, dem Transmissionsriemen 6 und dem Trommelriemenrad 5 ist die Wasch- oder Wäschetrommel 4 innerhalb des Laugenbehälters 3 in Drehbewegung versetzbar. The Trommelriemenrad 5 is disposed on the side of the second side wall outside of the tub 3. Via a transmission belt 6, the drum pulley 5 is coupled to a motor pulley 7. The motor pulley 7 is aligned parallel to the drum pulley 5. In the direction of the bottom of the machine housing 1, the motor pulley 7 is arranged but offset. The motor pulley 7 is rotatably connected to a rotor shaft of the electric motor 8, so that the motor pulley 7 can be driven by the electric motor 8. About a belt transmission consisting of the Motorriemenrad 7, the transmission belt 6 and the Trommelriemenrad 5 is the Washing or laundry drum 4 within the tub 3 can be set in rotary motion.
Falls der Transmissionsriemen 6 kein Isolator im Sinne einer Basisisolierung ist, kann das Lager der Wäschetrommel 4 geerdet sein (nicht dargestellt). In einer bevorzugten Alternative ist das Motorriemenrad 7 mit einer Basisisolierung versehen, z.B. in Form eines Zwei-Komponenten-Riemenrades auf der Achse des Elektromotors 8 mit innen liegendem elektrischem Isolator 7a. Bei einer alternativen Ausführungsform ist die Wasch- oder Wäschetrommel 4 durch einen Direktantrieb bewegbar. Der Direktantrieb befindet sich an der Stelle des Trommelriemenrads 5. If the transmission belt 6 is not an insulator in terms of basic insulation, the bearing of the laundry drum 4 may be grounded (not shown). In a preferred alternative, the motor pulley 7 is provided with basic insulation, e.g. in the form of a two-component pulley on the axis of the electric motor 8 with internal electrical insulator 7a. In an alternative embodiment, the washing or laundry drum 4 is movable by a direct drive. The direct drive is located at the location of the drum belt pulley 5.
Die Aufhängung des Innenaggregats 2 ist im Deckenbereich des Maschinengehäuses 1 durch Federn 11 realisiert. Die Federn 11 greifen jeweils mit ihrem einen Ende in die deckenseitigen Seitenbereiche des Maschinengehäuses 1 ein. Mit ihrem anderen Ende sind die Federn 1 1 an verschiedenen Positionen an dem Innenaggregat 2 befestigt, beispielsweise an der Oberseite des Laugenbehälters 3. Ferner stabilisieren Reibungsdämpfer 12 im Bodenbereich des Maschinengehäuses 1 das Innenaggregat 2. Die Reibungsdämpfer 12 sind jeweils mit einem Ende in den Seitenbereichen des Maschinengehäuses 1 abgestützt. Das jeweils andere Ende ist an der dem Boden des Maschinengehäuses 1 zugewandten Seite des Innenaggregats 2, hier an der Unterseite des Laugenbehälters 3, an verschiedenen Positionen befestigt. The suspension of the inner unit 2 is realized in the ceiling region of the machine housing 1 by springs 11. The springs 11 each engage with their one end in the cover-side side areas of the machine housing 1. With their other end, the springs 1 1 are attached to different positions on the inner unit 2, for example, at the top of the tub 3. Further stabilize friction damper 12 in the bottom portion of the machine housing 1, the inner unit 2. The friction damper 12 are each with one end in the side areas supported by the machine housing 1. The respective other end is attached to the bottom of the machine housing 1 side facing the inner unit 2, here at the bottom of the tub 3, at different positions.
Der Elektromotor 8 wird von einer Motorelektronik 10 angesteuert. Diese Motorelektronik 10 ist nicht an dem Elektromotor 8 angebracht, wie bei der in Fig. 1 dargestellten herkömmlichen Ausführungsform, sondern an dem Laugenbehälter 3 montiert. Zu diesem Zweck ist eine spezielle Ausformung 3a vorgesehen, die an dem Laugenbehälter 3 ausgebildet ist oder mit diesem fest verbunden ist. Die Motorelektronik 10 ist in dieser Ausformung 3a aufgenommen, sodass die Motorelektronik 10 starr mit dem Laugenbehälter 3 verbunden ist. Wie in Fig. 2 veranschaulicht, ist in dem Maschinengehäuse 1 ferner eine Hauptsteuerung 20 vorgesehen, welche die Motorelektronik 10 über eine Energieversorgungsleitung 21 mit Gleichspannung oder Wechselspannung versorgt und mit der Motorelektronik 10 über eine Kommunikationsleitung 22 zum Datenaustausch verbunden ist. The electric motor 8 is driven by an engine electronics 10. This engine electronics 10 is not attached to the electric motor 8, as in the conventional embodiment shown in Fig. 1, but mounted on the tub 3. For this purpose, a special molding 3a is provided, which is formed on the tub 3 or is firmly connected thereto. The engine electronics 10 is accommodated in this configuration 3a, so that the engine electronics 10 is rigidly connected to the tub 3. As illustrated in FIG. 2, a main controller 20 is also provided in the machine housing 1, which supplies the engine electronics 10 with DC voltage or AC voltage via a power supply line 21 and is connected to the engine electronics 10 via a communication line 22 for data exchange.
Wie in Fig. 2 femer veranschaulicht, ist die Motorelektronik 10 mit dem Elektromotor 8 über eine Verbindung 13 zum Ansteuern der Motorphasen des Elektromotors 8 verbunden. Außerdem ist eine Verbindung 14 zwischen der Motorelektronik 10 und einem Statorblech 8a des Elektromotors 8 vorgesehen. As further illustrated in FIG. 2, the engine electronics 10 are connected to the electric motor 8 via a connection 13 for driving the motor phases of the electric motor 8. In addition, a connection 14 between the engine electronics 10 and a stator 8 a of the electric motor 8 is provided.
Die Komponenten der Motorelektronik 10 sind in Fig. 3 in mehr Einzelheiten gezeigt, wobei deren Aufbau und Anordnung stark schematisiert dargestellt sind. Die Motorelektronik 10 weist beispielsweise eine ebene oder eine 3-D-Leiterplatte 24 auf, die mit dem Laugenbehälter 3 starr verbunden ist. Die Leiterplatte 24 ist insbesondere in der Ausformung 3a am Laugenbehälter 3 aufgenommen. The components of the engine electronics 10 are shown in more detail in Fig. 3, wherein the structure and arrangement are shown very schematically. The engine electronics 10 has, for example, a flat or a 3-D printed circuit board 24 which is rigidly connected to the tub 3. The circuit board 24 is received in particular in the shape 3a on the tub 3.
In der Leiterplatte 24 sind ein oder mehrere Öffnungen 23 ausgebildet, sodass ein Fluid (z.B. Kondenswasser, Wasserdampf) im Zwischenraum zwischen der Leiterplatte 24 und dem Laugenbehälter 3 in die Umgebung ablaufen kann. Zusätzlich oder alternativ können auch ein oder mehrere Öffnungen in der Ausformung ausgebildet sein. In the circuit board 24, one or more openings 23 are formed so that a fluid (e.g., condensed water, water vapor) in the space between the circuit board 24 and the tub 3 can leak into the environment. Additionally or alternatively, one or more openings may be formed in the molding.
Die Motorelektronik 10 enthält eine Vielzahl von Elektronikkomponenten sowie einen Kühlkörper 28. Insbesondere die größeren Komponenten sind - im eingebauten Zustand der Motorelektronik 10 - hängend an der Leiterplatte 24 montiert. Auf diese Weise fließt das Kondenswasser, das gegebenenfalls an den Elektronikkomponenten kondensiert, nicht auf die Leiterplatte 24, sondern kann durch die Schwerkraft in die Umgebung abtropfen. The engine electronics 10 includes a plurality of electronic components and a heat sink 28. In particular, the larger components are - mounted in the installed state of the engine electronics 10 - hanging on the circuit board 24. In this way, the condensed water, which optionally condenses on the electronic components, does not flow onto the circuit board 24, but can drain by gravity into the environment.
Der Kühlkörper 28 dient insbesondere der Kühlung von Leistungskomponenten wie zum Beispiel einer Umrichterausgangsstufe 31 der Motorelektronik 10. Der Kühlkörper 28 ist bevorzugt mit einer Vielzahl von Kühlfinnen 29 in Form von Domen versehen. Der Kühlkörper 28 erfährt eine zusätzliche Zwangsbelüftung durch unwuchtbedingte Schwingungen des Innenaggregats 2. Ein Kühlkörperdesign mit geringem Strömungswiderstand auch in X- und Y-Richtung ist daher vorteilhaft, um bei allen möglichen unwuchtbedingten Auslenkungsrichtungen der Motorelektronik 10 die bestmöglichste Küh- lung zu erzielen. Ein so gestalteter Kühlköper 28 kann ein Gusskühlkörper mit einer Vielzahl von als Dome ausgebildeten Kühlfinnen 29 sein. Alternativ ragt der Kühlkörper 28 über die Stirnwand des Laugenbehälters 3 hinaus, um eine bessere Luftzirkulation in Z- Richtung zu gewährleisten. Die Motorelektronik 10 weist eine Steuereinrichtung 35 (z.B. Mikrocontroller) auf, der über eine Kommunikationsleitung 22 mit der Hauptsteuerung 20 der Wäschebehandlungsmaschine verbunden ist. The heat sink 28 serves, in particular, for cooling power components such as, for example, an inverter output stage 31 of the engine electronics 10. The heat sink 28 is preferably provided with a plurality of cooling fins 29 in the form of domes. The heat sink 28 experiences an additional forced ventilation due to unbalanced vibration of the internal unit 2. A heat sink design with low flow resistance in the X and Y direction is therefore advantageous in order to achieve the best possible cooling in all possible unbalance-induced deflection directions of the engine electronics 10. A cooling body 28 designed in this way can be a cast cooling body with a large number of cooling fins 29 designed as domes. Alternatively, the heat sink 28 projects beyond the end wall of the tub 3 to ensure better air circulation in the Z direction. The engine electronics 10 has a control device 35 (eg microcontroller), which is connected via a communication line 22 to the main controller 20 of the laundry treatment machine.
Auf der Leiterplatte 24 der Motorelektronik 10 sind ein Gleichrichter 32, der von der Hauptsteuerung 20 über eine Energieversorgungsleitung 21 mit Wechselspannung versorgt wird, ein Spannungszwischenkreis 30 und eine dreiphasige Umrichterausgangsstufe 31 zum Ansteuern der drei Motorphasen des Elektromotors 8 angeordnet. On the circuit board 24 of the engine electronics 10, a rectifier 32, which is supplied from the main controller 20 via a power supply line 21 with AC voltage, a voltage intermediate circuit 30 and a three-phase inverter output stage 31 for driving the three motor phases of the electric motor 8 are arranged.
Die Motorelektronik 10 ist über die Hauptsteuerung 20 mit einem Schalter zu- und ab- schaltbar. Zur Versorgung mit Netzspannung ist die Hauptsteuerung 20 mit der Motorelektronik 10 über die Energieversorgungsleitung 21 verbunden. In der in Fig. 2 dargestellten Ausführungsform versorgt die Energieversorgungsleitung 21 von der Hauptsteuerung 20 die Motorelektronik 10 mit Netzspannung. Die Netzspannung wird im Gleichrichter 32 der Motorelektronik 10 gleichgerichtet. Die gleichgerichtete Wechselspannung auf der Motorelektronik 10 versorgt den Spannungszwischenkreis 30. Aus dem Spannungszwischenkreis 30 sind neben dem Elektromotor 8 auch weitere Aktuatoren versorgbar, wie Zirkulationspumpen oder Ablaufpumpen. The engine electronics 10 can be switched on and off via the main controller 20 with a switch. To supply mains voltage, the main controller 20 is connected to the engine electronics 10 via the power supply line 21. In the embodiment illustrated in FIG. 2, the power supply line 21 supplies the engine electronics 10 with mains voltage from the main controller 20. The mains voltage is rectified in the rectifier 32 of the engine electronics 10. The rectified AC voltage on the engine electronics 10 supplies the voltage intermediate circuit 30. From the voltage intermediate circuit 30, in addition to the electric motor 8, other actuators can be supplied, such as circulation pumps or drain pumps.
Alternativ ist die Versorgung der Motorelektronik 10 mit einer Gleichspannung möglich. Erfolgt die Stromversorgung der Motorelektronik 10 mittels der Energieversorgungsleitung 21 über eine Gleichspannung, ist derselbe Spannungszwischenkreis 30 neben der Umrichterausgangsstufe 31 zur Ansteuerung des Elektromotors 8 auch für weitere Umrichterausgangsstufen auf der Hauptsteuerung 20 zur Ansteuerung weiterer Aktuatoren verwendbar, wie z.B. einer Zirkulationspumpe oder einer Ablaufpumpe. Die Umrichterausgangsstufe 31 ist mit dem Elektromotor über die Verbindung 13 verbunden. Außerdem wird über die Verbindung 14 das elektrische Potenzial des Alternatively, the supply of the engine electronics 10 with a DC voltage is possible. If the power supply of the engine electronics 10 by means of the power supply line 21 via a DC voltage, the same voltage intermediate circuit 30 in addition to the inverter output stage 31 for controlling the electric motor 8 for other inverter output stages on the main controller 20 for controlling other actuators used, such as a circulation pump or a drain pump. The inverter output stage 31 is connected to the electric motor via the connection 13. In addition, via the connection 14, the electrical potential of the
Statorblechs 8a des Elektromotors 8 auf die Motorelektronik 10 geführt. Zur Reduzierung einer Einkopplung elektromagnetischer Störungen auf das Maschinengehäuse 1 , den darin liegenden Kabelbaum oder andere elektrisch verbundene Komponenten wie der Heizung 16 ist die Verbindung 14 auf der Motorelektronik 10 kapazitiv mit einem Bezugspotenzial der Motorelektronik 10 verbunden. Bevorzugt ist die Verbindung 14 mit einem Pol des Spannungszwischenkreises 30 der Umrichterausgangsstufe 31 zur An- Steuerung des Elektromotors 8, verbunden, damit das Statorblech 8a des Motors 8 als Abschirmung für die über die Verbindung 13 getakteten Motorphasen wirkt. Statorblechs 8a of the electric motor 8 led to the engine electronics 10. To reduce the coupling of electromagnetic interference to the machine housing 1, the wiring harness or other electrically connected components such as the heater 16, the connection 14 on the engine electronics 10 is capacitively connected to a reference potential of the engine electronics 10. Preferably, the connection 14 is connected to one pole of the voltage intermediate circuit 30 of the converter output stage 31 for controlling the electric motor 8, so that the stator plate 8a of the motor 8 acts as a shield for the motor phases clocked via the connection 13.
Die Motorelektronik 10 erzeugt üblicherweise störende niederfrequente Oberwellenströme auf der Energieversorgungsleitung 21 , die gedämpft werden müssen. Des Weiteren entstehen hochfrequente elektromagnetische Störungen durch Schaltvorgänge in der Leistungsstufe der Motorelektronik 10, die zur Ansteuerung des Elektromotors 8 dienen. The engine electronics 10 typically generates spurious low frequency harmonic currents on the power supply line 21 that must be attenuated. Furthermore, high-frequency electromagnetic interference caused by switching operations in the power stage of the engine electronics 10, which serve to control the electric motor 8.
Die Komponenten zur Filterung der elektromagnetischen Störaussendung sind in dem Ausführungsbeispiel von Fig. 3 wie folgt angeordnet. Eine (schwere) Oberwellendrossel 33 zur Reduzierung der Harmonischen zur Netzfrequenz bis ca. 2 kHz ist auf der Hauptsteuerung 20 angeordnet. Die Filterkomponenten zur Dämpfung hochfrequenter Störungen sind nahe an der Störquelle montiert, bevorzugt direkt auf der Motorelektronik 10. Eine solche Filtereinrichtung ist beispielsweise eine stromkompensierte Doppeldrossel 25 zur Filterung der hochfrequenten elektromagnetischen Störaussendung (> 100kHz) der Umrichterausgangsstufe 31 der Motorelektronik 10. The components for filtering the electromagnetic interference are arranged in the embodiment of Fig. 3 as follows. A (heavy) harmonic reactor 33 for reducing the harmonics to the mains frequency up to about 2 kHz is arranged on the main controller 20. The filter components for damping high-frequency interference are mounted close to the interference source, preferably directly on the engine electronics 10. Such a filter device is, for example, a current-compensated double choke 25 for filtering the high-frequency electromagnetic interference emission (> 100 kHz) of the converter output stage 31 of the engine electronics 10.
Weiter weist die Motorelektronik 10 einen oder mehrere Schwingungssensoren 26 zur Erfassung von Schwingungen des Innenaggregats 2, insbesondere seines Laugenbehäl- ters 3, sowie die Steuereinrichtung 35 zur Erfassung der Messwerte des wenigstens einen Schwingungssensors 26 und zur Ansteuerung des Elektromotors 8 auf. Furthermore, the engine electronics 10 have one or more vibration sensors 26 for detecting vibrations of the inner assembly 2, in particular its lye container 3, and the control device 35 for detecting the measured values of the at least one vibration sensor 26 and for controlling the electric motor 8.
Die Schwingungssensoren 26 sind zum Beispiel derart ausgebildet, dass sie Drehungen oder Linearbewegungen um die Y-Achse und/oder die Z-Achse (Koordinatensystem 9) messen können. Alternativ oder zusätzlich sind mit den Schwingungssensoren 26 die diesen Drehungen bzw. Linearbewegungen zugehörigen Winkelbeschleunigungen bzw. Linearbeschleunigungen messbar. Insbesondere können eine Nickbewegung des Innenaggregats 2 (um die Y-Achse) und/oder eine Gierbewegung des Innenaggregats 2 (um die Z-Achse) messbar sein. Ergänzend können die Schwingungssensoren 26 derart ausgebildet sein, dass auch Schwingungen um die X-Achse oder in der X-Achse messbar sind. The vibration sensors 26 are, for example, designed such that they rotate or move linearly about the Y-axis and / or the Z-axis (coordinate system 9). can measure. Alternatively or additionally, the angular accelerations or linear accelerations associated with these rotations or linear movements can be measured with the vibration sensors 26. In particular, a pitching movement of the inner assembly 2 (about the Y-axis) and / or a yawing movement of the inner assembly 2 (about the Z-axis) may be measurable. In addition, the vibration sensors 26 may be formed such that vibrations about the X-axis or in the X-axis are measurable.
Vorzugsweise sind mindestens zwei Schwingungssensoren 26 auf der Motorelektronik 10 und/oder direkt am Laugenbehälter 3 montiert. Die Schwingungssensoren 26 liegen auf einer zur Antriebsdrehachse (X) parallelen (fiktiven) Geraden. Dabei weisen die mindestens zwei Schwingungssensoren 26 eine möglichst große Distanz zueinander auf. Preferably, at least two vibration sensors 26 are mounted on the engine electronics 10 and / or directly on the tub 3. The vibration sensors 26 are located on a (fictitious) parallel to the drive axis of rotation (X). In this case, the at least two vibration sensors 26 have the greatest possible distance from one another.
Aus den Bewegungsinformationen der mindestens zwei Schwingungssensoren 26 ist die Lage des Massenschwerpunkts der Wäsche innerhalb der Wasch- oder Wäschetrommel 4 oberhalb einer Anlegedrehzahl, bei der die Wäsche vollständig an der Wäschetrommel 4 anliegt, exakt bestimmbar. Damit ist die Bewegung der Wäschetrommel 4 innerhalb der Waschmaschine eindeutig bestimmt und vorhersagbar. Anstelle mindestens zweier Schwingungssensoren 26 kann auch ein Schwingungssensor und ein Drehratensensor Anwendung finden. Dabei sind die beiden Sensoren vorzugsweise so zueinander zu montiert, dass die Erfassungsachsen beider Sensoren deckungsgleich sind. Bei dem schwingfähig aufgehängten Innenaggregat 2 ist die Beladung bzw. der Füllgrad bzw. das durch die eingefüllte Wäsche zugeladene Gewicht der Wäschetrommel 4 durch die Messung eines Einsinkweges der Reibungsdämpfer 12 messbar oder auch durch einen Vergleich einer Position der Motorelektronik 10 zu einem zum Maschinengehäuse 1 fixen Bezugspunkt. Die Messung kann auf Basis von optischen, laseroptischen, fiber- optischen, akustischen, induktiven oder magnetostriktiven Messprinzipien erfolgen. Weitere bevorzugte Messprinzipien basieren auf dem Prinzip des Differentialtransformators, der Differentialdrossel oder durch Bestimmung des Einsinkwegs auf Basis eines Wirbelstromsensors. Bei einem auf einer Reflexion basierenden Prinzip, wie z.B. einem laseroptischen Messprinzip, können ein Sender 27a und ein Empfänger 27b auf der Motorelektronik 10 montiert sein. Sender 27a und Empfänger 27b des Abstandssensors wirken zum Beispiel mit einer Reflexionsfläche 34 am Boden des Maschinengehäuses 1 zusammen. From the movement information of the at least two vibration sensors 26, the position of the center of mass of the laundry within the washing or laundry drum 4 above a contact speed at which the laundry is completely applied to the laundry drum 4, can be determined exactly. Thus, the movement of the laundry drum 4 within the washing machine is uniquely determined and predictable. Instead of at least two vibration sensors 26, a vibration sensor and a rotation rate sensor can also be used. The two sensors are preferably mounted to each other so that the detection axes of both sensors are congruent. In the vibrationally suspended indoor unit 2, the load or the degree of filling or the weight of the laundry drum 4 charged by the filled laundry can be measured by measuring a sinking distance of the friction damper 12 or by comparing a position of the motor electronics 10 to a machine housing 1 reference point. The measurement can be based on optical, laser-optical, fiber optic, acoustic, inductive or magnetostrictive measuring principles. Further preferred measuring principles are based on the principle of the differential transformer, the differential reactor or by determining the sinking on the basis of an eddy current sensor. In a reflection-based principle, such as a laser-optical measuring principle, a transmitter 27a and a receiver 27b may be mounted on the engine electronics 10. Transmitter 27a and receiver 27b of the distance sensor cooperate, for example, with a reflection surface 34 at the bottom of the machine housing 1.
Die erfindungsgemäße Steuerungsarchitektur mit der am Laugenbehälter 3 befestigten Motorelektronik 10 bietet aber noch weitere Optionen für eine Füllgradmessung über den Einsinkweg des Innenaggregats 2. So kann der Abstandssensor zum Beispiel auch durch einen Sender 27a' auf der Hauptsteuerung 20 und einen Empfänger 27b' auf der Motorelektronik 10 gebildet sein, die über eine Sensorleitung 27c' miteinander gekoppelt sein können. Über die Sensorleitung 27c' können zum Beispiel optische, akustische oder elektromagnetische Trägersignale übertragen werden, um die relative Lage zwischen der Hauptsteuerung 20 und der Motorelektronik 10 zu detektieren. Falls ein digitales Kommunikationssignal zwischen Sender 27a' und Empfänger 27b' ausreicht, kann in einer bevorzugten Ausgestaltung die Sensorleitung27c' entfallen und die Kommunikation zwischen Sender 27a' und Empfänger 27b' indirekt über die Kommunikationsleitung 22 erfolgen. Da die Hauptsteuerung 20 fix mit dem Maschinengehäuse 1 verbunden ist, ist die absolute Absenkung des Laugenbehälters 3 bei dessen Beladung mit Wäsche messbar und so über die Federkonstante der Federn 1 1 das Gewicht der Beladung bestimmbar. Bevorzugt ist die Hauptsteuerung 20 dabei nahe der Motorelektronik 10 am Maschinengehäuse 1 der Wäschebehandlungsmaschine montiert. Damit sind die Signale zwischen dem Sender 27a' und dem Empfänger 27b' möglichst ungestört, mit bestmöglicher Auflösung empfangbar. Alternativ können die Positionen von Sender 27a' und Empfänger 27b' auch vertauscht sein. However, the control architecture according to the invention with the motor electronics 10 fastened to the tub 3 also offers further options for a filling degree measurement via the sinking distance of the internal unit 2. For example, the distance sensor may also be provided by a transmitter 27a 'on the main controller 20 and a receiver 27b' on the engine electronics 10 may be formed, which can be coupled to each other via a sensor line 27c '. For example, optical, acoustic or electromagnetic carrier signals can be transmitted via the sensor line 27c 'in order to detect the relative position between the main controller 20 and the engine electronics 10. If a digital communication signal between transmitter 27a 'and receiver 27b' is sufficient, the sensor line 27c 'can be dispensed with and the communication between transmitter 27a' and receiver 27b 'can take place indirectly via the communication line 22 in a preferred embodiment. Since the main controller 20 is fixedly connected to the machine housing 1, the absolute lowering of the tub 3 is measurable during its loading with laundry and so on the spring constant of the springs 1 1, the weight of the load determined. Preferably, the main controller 20 is mounted near the engine electronics 10 on the machine housing 1 of the laundry treatment machine. Thus, the signals between the transmitter 27a 'and the receiver 27b' as undisturbed as possible, with the best possible resolution receivable. Alternatively, the positions of transmitter 27a 'and receiver 27b' may also be reversed.
BEZUGSZIFFERNLISTE REFERENCE NUMBER LIST
1 Maschinengehäuse 1 machine housing
2 Innenaggregat  2 indoor unit
3 Laugenbehälter  3 tubs
3a Ausformung zur Aufnahme der Motorelektronik  3a molding for receiving the engine electronics
4 Wasch- oder Wäschetrommel  4 washing or laundry drum
5 Trommelriemenrad  5 drum pulley
6 Transmissionsriemen  6 transmission belts
7 Motorriemenrad  7 motor pulley
7a Isolator zwischen Motorriemenrad und Rotorachse des Elektromotors 7a Isolator between motor pulley and rotor axis of the electric motor
8 Elektromotor 8 electric motor
8a Statorblech des Elektromotors  8a stator plate of the electric motor
9 Koordinatensystem  9 coordinate system
10 Motorelektronik  10 engine electronics
1 1 Federn  1 1 springs
12 Reibungsdämpfer  12 friction damper
13 Verbindung der Motorelektronik mit den Motorphasen des Elektromotors 13 Connection of the engine electronics with the motor phases of the electric motor
14 Verbindung der Motorelektronik mit dem Statorblech des Elektromotors14 Connection of the engine electronics with the stator of the electric motor
15 elektrischer Anschluss der Heizung an die Motorelektronik 15 electrical connection of the heater to the engine electronics
16 elektrische Heizung  16 electric heating
20 Hauptsteuerung der Wäschebehandlungsmaschine  20 Main control of the laundry treating machine
21 Energieversorgungsleitung von der Hauptsteuerung zur Motorelektronik 21 Power supply line from the main controller to the engine electronics
22 Kommunikationsleitung zwischen Hauptsteuerung und Motorelektronik22 Communication line between main controller and engine electronics
23 Öffnung 23 opening
24 Leiterplatte  24 circuit board
25 Filterdrossel  25 filter choke
26 Schwingungssensor oder Drehratensensor  26 Vibration sensor or rotation rate sensor
27a Sender des Abstandssensors  27a Transmitter of the distance sensor
27a' Sender des Abstandssensors  27a 'Transmitter of the distance sensor
27b Empfänger des Abstandssensors  27b receiver of the distance sensor
27b' Empfänger des Abstandssensors  27b 'receiver of the distance sensor
27c' Sensorleitung des Abstandssensors Kühlkörper 27c 'sensor line of the distance sensor heatsink
Kühlfinnen des Kühlkörpers Cooling the heat sink
SpannungszwischenkreisVoltage link
UmrichterausgangsstufeUmrichterausgangsstufe
Gleichrichter rectifier
Oberwellendrossel Harmonic choke
Reflexionsfläche reflecting surface
Steuereinrichtung  control device

Claims

PATENTANSPRÜCHE
1. Innenaggregat (2) einer Wäschebehandlungsmaschine, insbesondere schwingfähig aufgehängtes Innenaggregat einer Wäschebehandlungsmaschine, mit einem Laugenbehälter (3), einer drehbar gelagerten Wäschetrommel (4) im Laugenbehälter, einem Elektromotor (8) zum Antreiben der Wäschetrommel (4) und einer Motorelektronik (10) zur Ansteuerung des Elektromotors (8), 1. Inner unit (2) of a laundry treatment machine, in particular swingable suspended indoor unit of a laundry treatment machine, with a tub (3), a rotatably mounted laundry drum (4) in the tub, an electric motor (8) for driving the laundry drum (4) and an engine electronics (10 ) for controlling the electric motor (8),
dadurch gekennzeichnet, dass  characterized in that
die Motorelektronik (10) an dem Laugenbehälter (3) montiert ist.  the engine electronics (10) is mounted on the tub (3).
2. Innenaggregat nach Anspruch 1 , 2. Indoor unit according to claim 1,
dadurch gekennzeichnet, dass  characterized in that
der Laugenbehälter (3) eine Ausformung (3a) zur Aufnahme der Motorelektronik (10) aufweist.  the tub (3) has a shape (3a) for receiving the motor electronics (10).
3. Innenaggregat nach Anspruch 1 oder 2, 3. indoor unit according to claim 1 or 2,
dadurch gekennzeichnet, dass  characterized in that
die Ausformung (3a) zur Abschirmung der Motorelektronik (10) vor Feuchtigkeit, insbesondere zur Abschirmung vor Wassertropfen oder Spritzwasser, und/oder zum Schutz der Motorelektronik (10) vor mechanischen Einwirkungen, insbesondere vor einem Anschlagen an ein Maschinengehäuse (1) der Wäschebehandlungsmaschine oder ein damit verbundenes Teil, ausgestaltet ist.  the shaping (3a) for shielding the engine electronics (10) from moisture, in particular for shielding from water droplets or sprayed water, and / or for protecting the engine electronics (10) from mechanical effects, in particular from impact with a machine housing (1) of the laundry treatment machine or an associated part, is configured.
4. Innenaggregat nach einem der vorhergehenden Ansprüche, 4. Indoor unit according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
die Ausformung (3a) und/oder die Motorelektronik (10) wenigstens eine Öffnung (23) zum Austausch eines in der Ausformung (3a) befindlichen Fluids, insbesondere Wasserdampf oder Wasser, mit einer Umgebung aufweisen.  the molding (3a) and / or the engine electronics (10) have at least one opening (23) for exchanging a fluid in the molding (3a), in particular water vapor or water, with an environment.
5. Innenaggregat nach einem der vorhergehenden Ansprüche, 5. Inner unit according to one of the preceding claims,
dadurch gekennzeichnet, dass die Motorelektronik (10) eine Leiterplatte (24) aufweist und die Komponenten der Motorelektronik (10) zumindest teilweise hängend an der Leiterplatte (24) angeordnet sind. characterized in that the motor electronics (10) has a printed circuit board (24) and the components of the motor electronics (10) are arranged at least partially suspended on the printed circuit board (24).
Innenaggregat nach einem der vorhergehenden Ansprüche, Inner unit according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
die Motorelektronik ( 0) wenigstens einen Schwingungssensor oder einen Drehratensensor (26) aufweist.  the engine electronics (0) has at least one vibration sensor or one yaw rate sensor (26).
Innenaggregat nach einem der vorhergehenden Ansprüche, Inner unit according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
wenigstens ein Abstandssensor (27a, 27b; 27a', 27b') zur Messung eines Abstands zwischen dem Innenaggregat (2) und einem Maschinengehäuse (1) oder einem fest mit dem Maschinengehäuse (1) verbundenen Teil vorgesehen ist. Innenaggregat nach Anspruch 7, at least one distance sensor (27a, 27b; 27a ', 27b') is provided for measuring a distance between the inner unit (2) and a machine housing (1) or a part fixedly connected to the machine housing (1). Inner unit according to claim 7,
dadurch gekennzeichnet, dass  characterized in that
der Abstandssensor einen auf der Motorelektronik (10) angeordneten Sender (27a) und einen auf der Motorelektronik (10) angeordneten Empfänger (27b) aufweist, und  the distance sensor has a transmitter (27a) arranged on the motor electronics (10) and a receiver (27b) arranged on the motor electronics (10), and
der Sender (27a) und der Empfänger (27b) des Abstandssensors mit einer Reflexionsfläche (34) an dem Maschinengehäuse (1) oder einem fest mit dem Maschinengehäuse (1) verbunden Teil zusammenwirken.  the transmitter (27a) and the receiver (27b) of the proximity sensor cooperate with a reflecting surface (34) on the machine housing (1) or a part integral with the machine housing (1).
Innenaggregat nach Anspruch 7, Inner unit according to claim 7,
dadurch gekennzeichnet, dass  characterized in that
der Abstandssensor einen auf der Motorelektronik (10) angeordneten Sender (27a') oder Empfänger (27b') und einen an dem Maschinengehäuse (1) oder einem fest mit dem Maschinengehäuse (1 ) verbundenen Teil (20) angeordneten Empfänger (27b') oder Sender (27a') aufweist.  the distance sensor comprises a transmitter (27a ') or receiver (27b') arranged on the motor electronics (10) and a receiver (27b ') or a part (20) fixedly connected to the machine housing (1) on the machine housing (1) or Transmitter (27a ') has.
Innenaggregat nach einem der vorhergehenden Ansprüche, Inner unit according to one of the preceding claims,
dadurch gekennzeichnet, dass wenigstens eine Filtereinrichtung (25, 33) zur Dämpfung niederfrequenter und/oder hochfrequenter elektromagnetischer Störungen vorgesehen ist. characterized in that at least one filter device (25, 33) is provided for damping low-frequency and / or high-frequency electromagnetic interference.
11. Innenaggregat nach einem der vorhergehenden Ansprüche, 11. Indoor unit according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
der Elektromotor (8) ein Statorblech (8a) aufweist, das elektrisch mit der Motorelektronik (10), bevorzugt mit einem Spannungszwischenkreis (30) der Motorelektronik (10) verbunden ist.  the electric motor (8) has a stator plate (8a) which is electrically connected to the engine electronics (10), preferably to a voltage intermediate circuit (30) of the engine electronics (10).
12. Innenaggregat nach einem der vorhergehenden Ansprüche, 12. Indoor unit according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
ein elektrischer Isolator (7a) zwischen einem Motorriemenrad (7) des Elektromotors (8) und einer Rotorachse des Elektromotors (8) angeordnet ist.  an electrical insulator (7a) is arranged between a motor pulley (7) of the electric motor (8) and a rotor axis of the electric motor (8).
13. Innenaggregat nach einem der vorhergehenden Ansprüche, 13. Indoor unit according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
die Motorelektronik (10) einen Kühlkörper (28), vorzugsweise einen Kühlkörper (28) mit Kühlfinnen (29) aufweist.  the engine electronics (10) has a heat sink (28), preferably a heat sink (28) with cooling fins (29).
14. Wäschebehandlungsmaschine, aufweisend ein Maschinengehäuse (1 ), eine 14. Laundry treatment machine, comprising a machine housing (1), a
Hauptsteuerung (20) und ein Innenaggregat nach einem der vorhergehenden Ansprüche.  Main controller (20) and an internal unit according to one of the preceding claims.
EP17754073.9A 2016-08-08 2017-08-04 Inner unit of a laundry treatment machine and laundry treatment machine having such an inner unit Active EP3497277B1 (en)

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DE102021104987A1 (en) 2021-03-02 2022-09-08 Miele & Cie. Kg Textile treatment device and method for operating a textile treatment device
DE102021108006A1 (en) * 2021-03-30 2022-10-06 Diehl Ako Stiftung & Co. Kg Movement monitoring arrangement for monitoring a movement of a laundry drum of a laundry treatment appliance

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DE102005037144B4 (en) 2005-02-18 2007-04-19 Diehl Ako Stiftung & Co. Kg Vibratory suspended indoor unit of a laundry treatment machine with a vibration sensor
DE102010062918A1 (en) * 2010-12-13 2012-06-14 BSH Bosch und Siemens Hausgeräte GmbH Household appliance e.g. laundry washing machine has permanent magnets that are attached at laundry drum, and stator winding that is attached to container
KR102160979B1 (en) * 2013-08-06 2020-09-29 삼성전자주식회사 Washing Machine
CN104342877B (en) * 2013-08-08 2018-04-06 博西华电器（江苏）有限公司 Laundry machine
DE102014200775A1 (en) * 2014-01-17 2015-07-23 BSH Hausgeräte GmbH Washing machine with utilization of electronic module heat loss

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WO2018028825A1 (en) 2018-02-15

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